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installed on registered clients. Kits are organized so that a software product
can supply several different versions for multiple hardware platforms.
RIS client
A computer system that has permission to install software across the
network by accessing kits stored in the server’s RIS area.
RIS server
A computer system that serves other computers by providing operating
system software for them to install; the software is stored on disks belonging
to the server and is accessed across the network by the clients.
ris
Remote Installation Services utility, located at /usr/sbin/ris.A
text-based interface used to set up the RIS server and maintain RIS areas,
the software products within the RIS areas, and RIS client registrations.
rolling upgrade
A software upgrade of a cluster that is performed while the cluster is in
operation. One member at a time is rolled and returned to operation while
the cluster transparently maintains a mixed-version environment for the
base operating system, cluster, and Worldwide Language Support (WSL)
software. Clients accessing services are not aware that a rolling upgrade is
in progress.
S
server
A computer system that serves one or more other computers, called clients,
by providing resources to them.
See also client
shared file
A file used by all members of a cluster. There is only one copy of a shared file.
See also cluster, cluster member, member-specific file
software kit
See kit
subset
The smallest installable software kit module that is compatible with the
operating system’s setld software installation utility. It contains files of
any type, usually related in some way.
Glossary–7